Tags: Disease.
Distinguish from poliomyelitis (a virus disease that attacks nerves and so causes paralysis).Poliosis is the decrease or absence of melanin (or color) in head hair eyebrows or eyelashes. It can give rise to a Mallen Streak that can be hereditary.Catherine Cookson wrote a novel and later a TV series called The Mallen Streak where a family had the condition. Sports presenter Dickie Davies and runner Sam Brown were famous for this feature.
